Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Purchase of common stock, shares	1,300,000	2,077,101	0
Dividends declared per share	$ 4.110	$ 0.340	$ 0.270
Equity compensation activity, shares	102,552	109,852	242,253